A Practical Checklist for Industrial Plants on How Steam Trap Inspection Saves Energy
Checking steam traps isn’t just a regular maintenance task; it’s one of the best ways to cut down on industrial energy costs and make systems work better. A broken steam trap can cost businesses in the oil and gas, pharmaceutical, food and beverage, and marine industries thousands of dollars in lost energy, higher maintenance costs, and less reliable processes [1]. This guide gives you a useful list of things to do when doing steam trap surveys and shows you how a professional inspection service can help you make money.
A technician using thermal imaging equipment to do a professional steam trap survey.
What is a Steam Trap Survey, and why is it so important?
A steam trap survey is a methodical check of all the steam traps in a plant to find the ones that aren’t working or have broken down. These little devices, which are often ignored, are very important for getting rid of condensate, air, and other gases without letting live steam escape. When they break, either “open” (blowing steam) or “closed” (blocked), they waste a lot of energy, cause water hammer, and make heating less effective [2].
Techmatic has been a top provider of industrial solutions for more than 30 years. They know that regular inspections of steam traps are essential for keeping products working at their best and systems reliable. A full survey directly supports energy-saving goals and makes sure that process equipment works at its best.
A professional inspection checklist that shows you how to do it step by step
A well-organized steam trap survey makes sure that no detail is missed. Here is the list of things our experts do:
Step 1: Getting Ready and Making Plans
System Documentation: Check and update the plant’s list of steam traps, including their location, type, model, and use [3].
Make sure that the ultrasonic detection equipment, thermal imaging cameras, temperature probes, and safety gear are all calibrated and ready to use.
Step 2: Check the site
Check the outside for signs of damage, corrosion, leaks, or strange patterns of discharge. Check the state of the insulation and any fittings that go with it [4].
Before and after the trap, use surface temperature probes to find possible blockages or live steam loss.
Ultrasonic Testing: Listen to how the trap works from the inside with an ultrasonic detector. A constant hissing or rushing sound is often a sign that steam is blowing through a trap that is not working [5].
Thermal Imaging: Take infrared pictures to see how heat moves. A failed-open trap can often be seen by hot downstream piping, while a cold trap and upstream pipe can show that there is a blockage [5].
Condition Documentation: Put a tag on each trap, write down all the readings, and take pictures for the final report [3].
Step 3: Reporting and Analysis
Classifying Failures: Put each trap into one of four groups: “Operational,” “Failed Open,” “Failed Closed,” or “Requires Monitoring” [6].
Loss Calculation: Figure out how much money and energy each failed trap costs based on its orifice size, system pressure, and hours of operation [1].
Action Plan with Priorities: Make a clear report with a list of repairs or replacements that need to be done first to get the most out of your investment [6].
Understanding how common failure modes work and what they do
There are a few different ways that steam traps can break down, each with its own set of symptoms and effects:
Failed Open: This is the most expensive type of failure. There is always live steam blowing through the trap orifice. Energy losses are immediate and severe. A single broken trap could waste thousands of dollars a year on fuel and chemicals for treating water [1], [2].
Not working Closed/Blocked: The trap doesn’t let condensate out. This causes the heat exchangers to become waterlogged, makes it harder to control the temperature, lowers the quality of the production, and increases the risk of damaging water hammer [2], [4].
Worn or Stuck Internals: Wear, dirt, or corrosion can make cycling less efficient and cause partial failure, which leads to a slow decline in performance and wasted energy [4].
Case Study: Recorded Savings in Energy and Money
Background: A big food and drink factory in Singapore hired a company to do a steam trap survey because the cost of making steam was going up and the temperatures in the process were not always the same.
Findings from the First Survey (Before):
A survey of 250 traps found that 52 (21%) of them were broken. Of these, 38 were failed open and were leaking live steam. Using standard industry calculations, the estimated annual loss from these leaking traps was more than $85,000 SGD in wasted fuel and water alone [7].
The thermal camera picture clearly shows the high-temperature discharge from a steam trap that failed to open (highlighted in yellow/red).
Action and Results (After): The plant replaced all of the broken traps with high-efficiency models based on the priority report. Follow-up inspections showed that all of the new traps were working properly.
Results that were written down:
$78,000 SGD in energy savings each year (proven by using less fuel) [7]
Efficiency of the steam system has gone up by more than 15% [7].
Costs of maintenance: Lowered because there are fewer water hammer problems and the system pressure is more stable.
ROI on Survey & Repairs: Got it in less than six months [7]
After the survey and replacement project, a correctly installed and insulated steam trap assembly.
Get your steam system audited by Techmatic
Techmatic has been a trusted industrial partner in Singapore for more than 30 years, working with industries like oil and gas and pharmaceuticals. The company is dedicated to helping customers get the most out of their products. We don’t just supply products; we also offer practical help with fixing problems in your plant.
A professional inspection of your steam trap is a cheap way to get a quick and big return on your investment. It is an essential part of any plant’s predictive maintenance program because it saves money on energy costs and makes processes safer and more reliable.
Are you ready to stop wasting energy and make more money? Let our experienced staff help you. Call Techmatic today to set up a professional steam trap survey and get a full report on how much money you could save.
References
[1] U.S. Department of Energy. (2004).Improving Steam System Performance: A Sourcebook for Industry. DOE/GO-102004-1975.
[2] Oak Ridge National Laboratory. (2001). Review / Steam Trap Performance Assessment (ORNL/TM-2001/263).
[3] Energy.gov. (2002). Steam Trap Survey Guide.
[4] Spirax Sarco. (2022). Steam Trap Failure Modes and Maintenance.
[5] Fluke Corporation. (2021). Application Note: Using Thermal Imagers and Ultrasonic Detectors for Steam Trap Inspection.
[6] Armstrong International. (2023). Steam Trap Management & Survey Best Practices.
[7] Techmatic Internal Case Study. (2023). Food & Beverage Plant Steam System Audit, Singapore.
